Torpedo



E. s. R. BRANDT.

TORPEDO.

APPLICATION FILED APR. 16. 1921. I 1,388,918. A Patented Aug. 30, 1921.

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I 9 Ike] Q 9 Bra ndfi attozwug E. S. R. BRANDT.

TORPEDO. APPLICATION FILED APR. 16. 192

Patented Au 30, 1921.

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15 .i'iifirawait STATES EDMUND S. It. BRANDT, 0F NEWPORT, RH ODE TORPEDO.

Application filed April 16, 1921.

To all whom it may concern Be it known that I, EDMUND S. R. BRANDT, a citizen of the United States, residing at Newport, Rhode Island, have invented new and useful Improvements in Torpedoes, of which the following is a specification.

This invention relates to improvements in torpedoes and more particularly to means for cooling the exhaust gases.

One of the objects of the present invention is to provide a simple, practical and reliable mechanism or arrangement of parts whereby the exhaustgases from the engine are cooled prior to their leaving the shell of the torpedo thus materially reducing the temperature inside the after-body of the torpedo as well as the visibility of the wake produced by the torpedo.

Other objects will be in part obvious and in part hereinafter pointed out in connection with the accompanying sheets of drawing forming part of the present disclosure wherein,

Figure 1 is a longitudinal sectional view of the after-body of the torpedo while Figs. 2, 3 and 4: are partial transverse sectional views taken substantially on the lines 22, 3-3 and H of Fig. 1.

In Fig. 1 only one of the two exhaust trunks 5 is shown, the other being correspondingly positioned on the opposite side, that is, one on each side of the center line of the torpedo so placed as to avoid fixtures already installed. This trunk 5 is preferably formed of sheet metal pressed to shape and forming with the shell 6 of the torpedo a tube of general triangular cross section, the section diminishing in size from the point of admission of the exhaust gases, that is, at the left of Fig. 1, t0 the exit thereby caringfor the contractions of the gas in cooling.

Suitable flanges 8 are provided on the exhaust trunk for riveting, soldering or otherwise securing the same to the shell of the torpedo. Slots are cut in the trunks at points where they pass over the after-body strengthening rings or ribs 10 and holes 11 are made in the latter to assist in the passing of the gases. These rings also serve as baffles thereby to break up the current lines in the flow of gas and give a better radiation of heat and consequent cooling effect.

As compared with the present exhaust tubes used in torpedoes the trunks provide the following features The cooling of the Specification of Letters Patent.

Patented Aug. so, we

Serial No. 462,046.

exhaust gases, the tapering cross-section area approxlmating the ideal for contractn of volume due to cooling, increased area the point where the gases enter the trunl from the turbine chamber of 437%, and i: creased area at the smallest point of over the present tubes.

The construction, it is believed, will l clear to those skilled in the art and furth statement is believed to be unnecessary. T] invention is of simple and practical co: structio-n, reliable and efiicient in operatk and 1s adapted to accomplish, among other all of the objects and advantages herein s forth.

Without further analysis, the foregoir will so fully reveal the gist of this inventi that others can by applying current know edge readily adapt it for various applic tlons wlthout omitting certain features the from the standpoint of the prior art, fair: constitute essential characteristics of tl generic or specific aspects of this inventio and, therefore, such adaptations should al are intended to be comprehended within tl meaning and range-of equivalency of t] following claims.

What I claim is 1. In a torpedo, in combination, exhau trunks in which the outer shell of the to pedo forms one of the walls thereof.

2. In a torpedo, in combination, exhau trunks of pressed sheet metal forming wi1 the shell of the torpedo substantially tria: gular passages of gradually diminishir cross-sectional area.

3. In a torpedo, in combination, exhau trunks of pressed sheet metal forming wi the shell of the torpedo passages of grad ally diminishing cross-sectional area, an means in said trunks for breaking up tl current lines in the flow of gas.

e. In a torpedo, in combination, exhau trunks of pressed sheet metal forming wii the shell of the torpedo passages of grad ally diminishing cross-sectional area, meat in said trunks for breaking up the curre: lines in the How of gas, said means compri ing the strengthening ribs in the shell of torpedo, said ribs being provided with hol through which part of the gas may pass.

Signed at Newport, Rhode Island, this 6 day of April, i921.

EDMUND R. BRANDT. 

